Invention Grant
US07949325B2 RF transmitter and integrated circuit with programmable filter module and methods for use therewith
有权
RF发射器和具有可编程滤波器模块的集成电路及其使用的方法
- Patent Title: RF transmitter and integrated circuit with programmable filter module and methods for use therewith
- Patent Title (中): RF发射器和具有可编程滤波器模块的集成电路及其使用的方法
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Application No.: US12026495Application Date: 2008-02-05
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Publication No.: US07949325B2Publication Date: 2011-05-24
- Inventor: Ahmadreza (Reza) Rofougaran
- Applicant: Ahmadreza (Reza) Rofougaran
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick Harrison & Markison
- Agent Bruce E. Stuckman
- Main IPC: H04B1/26
- IPC: H04B1/26 ; H04B1/38 ; H04B1/02

Abstract:
A radio frequency (RF) transmitter includes a transmitter processing module that generates a processed signal based on outbound data, wherein the processed signal includes one of: a baseband signal and a low intermediate frequency signal. An up-conversion module up-converts the processed signal to generate an up-converted signal. A programmable filter module generates a plurality of delayed signals from the up-converted signal and that generates a filtered up-converted signal by combining the up-converted signal and the plurality of delayed signals, wherein a delayed signal of the plurality of delayed signals is scaled based on one of a plurality of coefficients, wherein the plurality of coefficients are selected based on a control signal. A radio transmitter front-end generates a transmit signal based on the filtered up-converted signal. A processing module generates the control signal to attenuate at least RF spur of the up-converted signal.
Public/Granted literature
- US20090197560A1 RF TRANSMITTER AND INTEGRATED CIRCUIT WITH PROGRAMMABLE FILTER MODULE AND METHODS FOR USE THEREWITH Public/Granted day:2009-08-06
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